Minimizing coordination channels in distributed testing

  • Authors:
  • Guy-Vincent Jourdan;Hasan Ural;Hüsnü Yenigün

  • Affiliations:
  • School of Information Technology and Engineering (SITE), University of Ottawa, Ottawa, Ontario, Canada;School of Information Technology and Engineering (SITE), University of Ottawa, Ottawa, Ontario, Canada;Faculty of Engineering and Natural Sciences, Sabancı University, Tuzla, Istanbul, Turkey

  • Venue:
  • FORTE'06 Proceedings of the 26th IFIP WG 6.1 international conference on Formal Techniques for Networked and Distributed Systems
  • Year:
  • 2006

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Abstract

Testing may be used to show that a system under test conforms to its specification. In the case of a distributed system, one may have to use a distributed test architecture, involving p testers in order to test the system under test. These p testers may under some circumstances have to coordinate their actions with each other using external coordination channels. This may require the use of up to p2–p unidirectional coordination channels in the test architecture, which can be an extensive and expensive setup. In this paper, we propose a method to generate checking sequences while minimizing the number of required coordination channels, by adapting existing methods that generate checking sequences to be applied in a centralized test architecture. We consider the case of unidirectional and bidirectional coordination channels, and the case of transitive coordination.